The way its used here in aikiweb seems to be an oversimplification of the kind that Chris is hinting as in "good" vs "bad" or mysterious vs scientific.
This link has a pretty good description of the kind of bagagge these terms have , where they come from, and why it makes the current discussion kind of non productive.
Good find Alfonso. that article said pretty much what needed. i liked section 3.1 and the fighting tactic section. in many way, aikido fit into that.